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 Post subject: Cold water pressure
PostPosted: Sun Jul 23, 2017 12:54 pm 
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Hi,

I am inept at anything DIY although I insist on having a go...

Could anyone help with the below???

I changed the upstairs bath taps. To do this I needed to turn off the mains feed to the house. Which meant I drained the loft tank. The cold tap had no pressure so I attached a hose to the hot to the cold. I then turned on the hot which seemed to clear the air lock partially, now I have some pressure although not as strong as before.

How do I resolve the water pressure? Could it still be an airlock if so how best to clear it? Or could it be a blocked pipe from where I drained the tank?

Struggling and getting it in the ear...

Thanks in advance

Cheers

Jeweller


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 Post subject: Re: Cold water pressure
PostPosted: Sun Jul 23, 2017 7:13 pm 
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:dunno:

Could you have fitted high pressure taps in error?


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 Post subject: Re: Cold water pressure
PostPosted: Sun Jul 23, 2017 8:04 pm 
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Notch1 wrote:
:dunno:

Could you have fitted high pressure taps in error?


..........or taps with a narrow bore flexi hose

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 Post subject: Re: Cold water pressure
PostPosted: Sun Jul 23, 2017 10:04 pm 
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Is it just the new bath taps that have poor flow, or other taps too (such as washbasins, etc)?

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 Post subject: Re: Cold water pressure
PostPosted: Wed Jul 26, 2017 7:59 pm 
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chrrris wrote:
Is it just the new bath taps that have poor flow, or other taps too (such as washbasins, etc)?


Pressure rubbish in wash basin. The taps are the same just newer!

Thanks for your responses.


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 Post subject: Re: Cold water pressure
PostPosted: Wed Jul 26, 2017 9:43 pm 
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Right-o! It's definitely an airlock then. When you connected the hot and cold together to clear the airlock, I take it it was a mains pressure cold tap you used (usually kitchen sink) as connecting a cold tap that's fed from the tank wouldn't do the trick. Airlocks can be a bit of pain -- you might want to try running a hose from the kitchen cold tap to each of the bath taps. That ought to do it.

Or, if you happen to own a wet vac, then you can put the nozzle over each bath tap in turn, and literally suck the air (and probably a few litres of water) out of the pipework. Obviously don't do that if you have a normal (dry) vaccuum cleaner unless you want it to go bang!

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 Post subject: Re: Cold water pressure
PostPosted: Tue Aug 01, 2017 8:33 pm 
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chrrris wrote:
Right-o! It's definitely an airlock then. When you connected the hot and cold together to clear the airlock, I take it it was a mains pressure cold tap you used (usually kitchen sink) as connecting a cold tap that's fed from the tank wouldn't do the trick. Airlocks can be a bit of pain -- you might want to try running a hose from the kitchen cold ki tap to each of the bath taps. That ought to do it.

Or, if you happen to own a wet vac, then you can put the nozzle over each bath tap in turn, and literally suck the air (and probably a few litres of water) out of the pipework. Obviously don't do that if you have a normal (dry) vaccuum cleaner unless you want it to go bang!



Turner the combi boiler off, ran a hose from hot tap which is mains through cold tap which seems to have cleared it!

Thanks all



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 Post subject: Re: Cold water pressure
PostPosted: Wed Aug 02, 2017 12:50 am 
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Jeweller wrote:
Turner the combi boiler off, ran a hose from hot tap which is mains through cold tap which seems to have cleared it!

Thanks all

Well done. Glad you've got it sorted. Sounds like you have mains-pressure hot water via the combi and an old tank-fed cold system. When you're next feeling brave, I would be inclined to ditch the cistern in the loft and have the whole house hot+cold at mains pressure. Then you can say goodbye to airlocks for good!

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